CN1434419A

CN1434419A - IC card memory with special recoriding format

Info

Publication number: CN1434419A
Application number: CN02118906A
Authority: CN
Inventors: 金秉俊
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 1995-06-28
Filing date: 2002-05-02
Publication date: 2003-08-06
Also published as: CN1099091C; KR970003088A; US5794202A; EP0751477B1; KR0182939B1; CN1142641A; DE69632169T2; EP0751477A3; EP0751477A2; DE69632169D1; JPH0935029A

Abstract

The present invention discloses an IC card memory having specific recording format and method for recording/reproducing digital voice therefrom. The IC card memory includes a header region for storing information about the IC card memory and information about a format, a chapter attribute table (CAT) region for storing information relating to a single chapter, a cluster index table (CIT) region for storing an address of a single cluster index corresponding to a recorded data block, and a data region for storing digital voice data.

Description

The IC-card memory that specific recording format is arranged

The application is dividing an application of the Chinese patent application 96107761.1 that submitted on May 31st, 1996 by name " the IC card memory of specific recording format arranged and therefrom record/restart the method for digital speech ".

Background of the present invention:

The present invention relates to an IC-card memory in digital voice recording/reproducing device, more specifically to having specific recording format and a kind of like this IC-card memory of the method for recording/reproducing digital speech therefrom.

So far, on tape, never taked special operation during the record analog input speech signal. Therefore the record analog voice signal causes voice quality to descend or the memory space minimizing on tape.

As shown in Figure 1, general analogue recording/reproducing device comprises a microphone MIC who is used for receiving analog voice signal, one be used for amplifying recording signal record amplifier 52, one be used for receiving operation signal connect key input part 51, a driving governor 53 that is used for controlling and driving tape, a recording/reproducing part 56 that is used for the modulation signal on the recording/reproducing tape, a playback amplifier 55 that is used for amplifying replay signal, and a loudspeaker SPK who is used for resetting and produces signal.

The analog voice signal that receives from microphone MIC is to modulate according to the recording audio rate of magnetic head. Modulation determines to be transported to the voltage of magnetic point according to the amplitude of input signal. Modulation signal is sent on the magnetic head and is recorded on the tape that is turning round. If a high voltage flows into magnetic head, the characteristics according to magnetic head will form a high-intensity magnetic field so. Magnetic field causes signal recording on tape. In the playback procedure, be recorded in signal on the tape and be read out and convert the signal of telecommunication to according to signal amplitude. Signal after the conversion is sent on a mounted loudspeaker or the earphone, or on outside line terminal.

Yet, because the analog voice record/playback equipment has and a kind of the input analog signal sent on the magnetic head structure that produces magnetic field, thus each input signal be difficult to distinguish and also input signal on do not contain any information. So this equipment can not be applied to other field, computer for example is in the communication etc. And because the memory space of recording is subjected to the impact of surrounding environment, jitter.

If adopt data signal to replace analog signal, voice quality can descend hardly so, and records with playback time and can make mistakes hardly. In addition owing to may classify to the information of having recorded, so data signal has widely and uses.

At present the IC-card memory is that recording-media as a kind of a new generation occurs. Compare such as analog tape, Zip disk and minidisk etc. with other recording-medias, the IC-card memory has better performance aspect portable and the memory data output. But the exploitation of applicable equipment is not adequate, because applicable memory device is expensive and do not have a unified format.

Therefore purpose of the present invention namely provides a kind of have the IC card memory of constant format and the method for recording/reproducing digital speech therefrom.

According to an aspect of the present invention, an IC-card memory is provided, it comprises that one is used for storing information on the IC-card memory and the Head Section of format information, a section attribute table district that is used for storing the information that relates to a joint, a family concordance list district that is used for storing corresponding to the address of family's index of the data block that has recorded, and a data field that is used for storing digital voice data.

According to a further aspect in the invention, provide a kind of IC-card memory that utilizes to record and the method for the digital speech of resetting, may further comprise the steps: detect the IC-card memory and whether insert; Check by the verification sequence that reads the bad block management district whether this verification sequence is correct; If have the verification sequence content of having recorded, read this content and an address and read a Head Section; If leader will is correct, be written into section attribute table and joint concordance list.

Below with reference to accompanying drawings the present invention is described in more detail.

Brief description of the drawings

Fig. 1 is the block diagram of general analog voice record/playback equipment;

Fig. 2 is the block diagram that utilizes according to the digital speech record/playback equipment of IC-card memory of the present invention.

Fig. 3 has shown the form of the memory cards that can record.

Fig. 4 has shown the form of the memory cards that can only reset.

Fig. 5 is the flow chart that is written into order that shows the recording/reproducing memory cards according to the present invention.

Fig. 6 is the flow chart that is written into order that shows the playback memory cards according to the present invention.

Fig. 7 has shown the internal structure of memory cards; And

Fig. 8 has shown the relational structure between section attribute table (CAT) and the family's concordance list (CIT).

Detailed description of preferred embodiment

In the following description, in order more profoundly to understand the present invention, shown the detail such as the electric circuit constitute etc. But, obviously for the professional and technical personnel, do not have the present invention of these details can implement yet. In other cases, become ambiguous in order not make the present invention, well-known function or formation are not described.

Referring to Fig. 2, shown a digital speech record/playback equipment that adopts IC-card memory 18. What IC-card memory 18 was stored is digital voice data. Whether card interface 17 detects IC-card memory 18 and contacts with the digital speech record/playback equipment. Inserted if detect IC-card memory 18, card interface 17 provides power supply, clock, data etc., perhaps reading out data from the IC-card memory 18. The all operations were of controller 13 control figure voice recording/reproducing devices. Voice acceptance terminal 1 is by reception digital speech such as microphones. Input amplifier 2 amplifies the digital speech that receives through voice acceptance terminal. Mould/number (A/D) converter 3 makes the digitization of speech signals after the amplification. Input buffer 4 is temporary is digitized voice signal (hereinafter referring to the first audio digital signals) or the second data signal of providing from IC-card memory 18 through card interface 17.

Key-press input terminal 5 is sent into the digital speech record/playback equipment to various instruction and datas. Keystroke interface 6 makes controller 13 detect the key-press input data that receive through key-press input terminal 5. Timing sequencer 7 checks and the control sequential. Storing data and program among the ROM. 14 pairs of signals that provided by input buffer 4 of digital signal processor carry out digital processing and can produce the output data of compressed format or unpacked format. The output buffer 12 temporary signals of being processed by digital signal processor 14. D/A (D/A) converter 11 converts the data signal that is produced by output buffer 12 to analog signal. The voice signal of 10 pairs of analog-converted of output amplifier amplifies. Voice output terminal 9 is sent the voice signal of amplification by loudspeaker and so on. Display controller 15 is by means of the process that shows the digital speech recording/reproducing on the display unit 16 that is controlled at of controller 13.

Format according to the invention can be categorized into for the form of recording/reproducing system and the form of the system that is used for resetting. Every kind of form all comprises a system area and a data field. Fig. 3 has shown the form of the memory cards that can record. System area is divided into a Head Section, a section attribute table (CAT) district, family's concordance list (CIT) district, a spare area and a bad block management district. Fig. 4 shows is the form of the memory cards that can only reset. System area is divided into Head Section, CAT district and CIT district. No matter be recording/reproducing system or can only playback system, the function that system area is realized is identical. Therefore, will be described as the basis take the form of recording/reproducing system now.

Information and form on the whole IC-card memory are listed in Head Section. What following table 1 showed is the content of Head Section in the recording/reproducing system. Only use 256 bytes, other is that null byte is as the reserved area.

Table 1

Side-play amount (byte)	Title	Content
Side-play amount (byte)	Title	Content	08h (8)	The format check code	Check whether the IC-card memory that has inserted is FCAF form FFh, 53h, 41h, 4Dh, 53h, 55h, 4Eh, 47h "
08h (8)	The form name	Basic IC-card memory form name ASCII character is " FCAF-1.0 "	08h (8)	The format check code
08h (8)	The form name		10h (18)	System identifier	The name of J family and company made in record, mostly is the ASCII character of 16 characters most
20h (6)	The form date and time	Record is first owe to format the IC-card memory date and time " xxh; xxh (year); xxhxx (day); hxxhxx (day) " " xxhxxh (and the time); xxhxxh (dividing), xxhxxh (second) " record the time under the value that appends to per year on 1994 and the 24 hours systems.	10h (18)	System identifier
20h (6)	The form date and time		26h (1)	The Card Type indicator	The IC-card type of memory. It is read-only whether indication IC-card memory can record (2 high byte bits) 00-, and 11-can record, the memory of use (6 low byte bits) x0-ROM, x1-SRAM, x2-EPROM, x3-EEPROM, the x4-NAND flash memory, x5-WOR flash memory, other value-reservation.
27h (1)	Every family piece number	Show take binary number cluster has how many pieces (at present as 4096 bytes)	26h (1)	The Card Type indicator

28h (4)	The reserved area	Fill with " FFH "
28h (4)	The reserved area	Fill with " FFH "	2ch (4)	The starting block of CAT number	The piece number (equaling block address) that CAT is initial
30h (2)	CAT entrance number	The CAT that produces during format sum, for example one of 128,256,512 and 1024	2ch (4)	The starting block of CAT number
30h (2)	CAT entrance number		32h (4)	CIT starting block number	The piece number (equaling module's address) that CIT is initial
36h (3)	CIT entrance number	The CIT sum that produces during the format. A CIT is corresponding to cluster.	32h (4)	CIT starting block number
36h (3)	CIT entrance number		39h (11)	The CIT number that copies	The CIT number that copies that when a CIT is destroyed, uses.
3Ah (4)	The reserved area	Fill with " FFH "	39h (11)	The CIT number that copies
3Ah (4)	The reserved area	Fill with " FFH "	3Eh (1)	The joint number of having recorded	The total current maximum number of the joint of having recorded is 128.
3Fh (1)	Data field starting block number	The size of data field (unit is byte). Upper byte is 3, and low byte is 0. Number of modules-(spare area+bad block management district+Head Section+CAT district+CIT district)	3Eh (1)	The joint number of having recorded
3Fh (1)	Data field starting block number		43h (4)	The data block sum	The data block sum. The actual size of data field is to obtain by the bad piece sum that deducts in the data field from above-mentioned data field size
47h (2)	Bad piece number	The initial piece number (equaling block address) of data field	43h (4)	The data block sum

49h (183)

The reserved area

Fill with " FFH ".

Following table 2 shows be can only playback system in the content of Head Section.

Table 2

Skew (byte)	Title	Content
Skew (byte)	Title	Content	08h (8)	The format check code	Verify whether the IC-card memory that has inserted is FCAF form " FFh, 53h, 41h, 4Dh, 53h, 55h, 4Eh, 47h "
08h (8)	The form name	Basic IC-card memory form name ASCII character is " FCAF-1.0 "	08h (8)	The format check code
08h (8)	The form name		10h (18)	System identifier	Record the name of manufacturing firm and company, mostly be the ASCII character of 16 characters most.
20h (6)	The form date and time	Record formats the date and time in the IC-card storage first. " xxh, xxh (year), xxhxx (moon), hxxhxx (day) " " xxh, xxh (time), xxhxxh (dividing), xxhxxh (second) " only record be added to per year value on 1994 and the time under 24 hours systems.	10h (18)	System identifier

26h (1)	The Card Type indicator	Whether IC-card type of memory indication IC-card memory can record (2 high byte bits): 00-is read-only, and 11-can record, the memory of use (6 low byte bits) xp-ROM, x1-SRAM, x2-EPROM, x3-EEPROM, the x4-NAND flash memory, the x5-NUR flash memory. Other value-reservation.
26h (1)	The Card Type indicator		27h (1)	Every bunch of piece number	Show with binary number what pieces are cluster contain. (being 4096 bytes at present)
28h (4)	The reserved area	Fill with " FFH ".	27h (1)	Every bunch of piece number
28h (4)	The reserved area	Fill with " FFH ".	2ch (4)	CAT starting block number	The piece number (equaling block address) that CAT is initial
30h (2)	CAT entrance number	The CAT sum that produces during the format. For example one of 128,256,512 and 1024.	2ch (4)	CAT starting block number
30h (2)	CAT entrance number		32h (4)	CIT starting block number	The piece number (equaling block address) that CIT is initial.
36h (3)	CIT entrance number	The CIT sum that produces during the format. The corresponding cluster of CIT.	32h (4)	CIT starting block number
36h (3)	CIT entrance number		39h (1)	The CIT number that copies	The CIT number that copies that when a CIT is destroyed, uses.
3Ah (4)	The reserved area	Fill with " FFH "	39h (1)	The CIT number that copies
3Ah (4)	The reserved area	Fill with " FFH "	3Eh (1)	The joint number of having recorded	The sum of the joint of having recorded. Current maximum number is 128.
3Fh (1)	Data field starting block number	The size of data field (unit is byte) upper byte be 3 and low byte be 0.	3Eh (1)	The joint number of having recorded
3Fh (1)	Data field starting block number		43h (4)	The piece sum of data field	The bad piece sum of data field
47h	The reserved area	Fill with " FFH ".	43h (4)	The piece sum of data field	The bad piece sum of data field

(185)

What following table 3 showed is the content in CAT district. The CAT district is a district of collecting the information relevant with joint. After a record operation begins to carry out, the content of joint for the data recorded until be finished. One joint comprises 32 bytes, and has 128 joints to record. That is to say that (therefore=4K) byte takes a piece because 32 * 128=4.096. Only use 256 bytes in one page, all the other 80 bytes are used for recording the additional information relevant with page or leaf.

Table 3

Side-play amount (byte)	Title	Content
Side-play amount (byte)	Title	Content	00h (12)	Section name	The section name that is fit to. In MASK ROM, should be worth more effective.
och (3)	TRDA	The from date of recording " xxhxxh (year), xxhxxh (moon), xxhxxh (day) "	00h (12)	Section name
och (3)	TRDA		0Fh (3)	Recording time	The zero-time of recording " xxhxxh (time), xxhxxh (dividing), xxhxxh (second) "
12h (4)	The capacity of joint	The capacity (unit is byte) of joint	0Fh (3)	Recording time
12h (4)	The capacity of joint	The capacity (unit is byte) of joint	16h (6)	The mode of joint	The mode of data recording. For example, the feature of voice+image+text+various data of expression like that. Begin to use respectively 2 byte records voice, image, text from upper byte.
1ch (2)	The reserved area	Fill with " FFM ".	16h (6)	The mode of joint
1ch (2)	The reserved area	Fill with " FFM ".	1Eh(2)	The initial number of CIT	The CIT number of corresponding joint beginning. (piece and page address)

Following table 4 expression be the CIT district that is storing the information that relates to bunch. It bunch is the base unit of deletion and management. One or more of cluster representatives. Every bunch is 2 bytes, an address of expression real data. In other words, recording an address of recording the corresponding bunch of index of piece. Exclusive data except the CIT address is as follows:

FFFFh: untapped bunch

FFF5h: bad bunch

FFFAh: last bunch, and

Other values: the address of all the other bunches

Wherein " FFFAh " be recorded in last by recorded bunch in. That is to say, before " FFFAh " occurs, read be bunch index that connecting continuously, bunch initial address be recorded in last 2 bytes of corresponding CAT.

Table 4

xxxxh	xxxxh	....	xxxxh
xxxxh	xxxxh	....	xxxxh	xxxxh	xxxxh	.	xxxxh
.	.	.	.	xxxxh	xxxxh	.	xxxxh
.	.	.	.	.	.	....	.
xxxxh	xxxxh	....	xxxxh	.	.	....	.

The data field is used for record data. In one page, what only have 256 byte records is clear data, all the other 8 byte records be various control signals and corresponding to every page additional information. Page information is pressed following setting:

Byte 7-4: reserved area

Byte 3: indicate whether it is ED (EOD)

Byte 2: the last address of data

Byte 1-0: reserved area

If above-mentioned information and date is recorded together, playback duration just can be known data field accurately capacity and last address so. The end of file (EOF) of using in ED (EOD) and the computer has almost identical meaning.

The basic value that the spare area contains the piece number is 4 pieces. This district is prepared in advance to deal with Head Section, the CAT district, and any one district in CIT district and the bad block management district is predicated the situation of bad piece, and the quantity of spare area is at the Head Section indicating. The initial address of spare area is preassigned, has taken thus 4 pieces. Even be provided with bad piece in the system, the data field at most also can only be recorded to the initial address place of spare area. Therefore, the spare area must be empty. If replace (copying) data field with one of them system area, this district will be recorded in the bad block management district so. Information on having recorded appropriate address and alternate area and again during plug card can the reading system district. If bad piece is arranged in the data field, do not make and damage piece.

What following table 5 represented is the content in bad block management district. The bad block management district be at first with system in Head Section read in the lump. For reading out data district correctly, comprise the system area of Head Section, should also read the bad block management district. The bad piece that produces in the data field manages in the bad block management district, does not re-use bad piece to reach.

Table 5

Side-play amount (byte)	Title	Content
Side-play amount (byte)	Title	Content	00h (16)	School inspection sequence	“FFh，FFh，AAh，55h，0Fh，Foh，24h，DB h，03h，OCh，30h，C0h，33h，66h，cch，9 9h”.
10h (2)	Version number	FCAF version number	00h (16)	School inspection sequence
10h (2)	Version number	FCAF version number	12h (2)	Spare area quantity	Spare area in the IC-card memory (piece) sum
14h (8)	The address, spare area	The block address of each spare area	12h (2)	Spare area quantity	Spare area in the IC-card memory (piece) sum
14h (8)	The address, spare area	The block address of each spare area	1ch (4)	The spare area content	The content of each spare area (alternative system name)
20h (2)	The piece number	The sum of the piece in the IC-card memory	1ch (4)	The spare area content	The content of each spare area (alternative system name)
20h (2)	The piece number	The sum of the piece in the IC-card memory	22h (2)	Bad piece number	The sum of bad piece in the data field of IC-card memory
24h	Defect block addresses	The address of each bad piece	22h (2)	Bad piece number	The sum of bad piece in the data field of IC-card memory

In above-mentioned table 5, whether verification sequence indication bad block management district is correct. If correctly do not detect verification sequence, so the bad block management district placed the spare area. Verification sequence is the criterion in search bad block management district from the spare area.

Fig. 5 has shown the order that is written into of recording/reproducing memory cards. Insert if detect card, then verify verification sequence whether correctly (step 5a-5d) by the verification sequence that reads in the bad block management district. If recorded content in the spare area, then read these contents and address and read head district (step 5e-5g). If leader will (IID) is correct, then be written into CAT and CIT (step 5h-5j). Meanwhile, if the verification sequence in the bad block management district is incorrect, then repeatedly read the piece of spare area until this piece is judged is bad block management district (step 5k-5n). If the ID mistake of head then will show the message (step 50) of " not readable " on display unit 16.

Fig. 6 shows is the order that is written into of the memory cards of resetting. Insert if detect card, the ID that then checks head by the read head district with judge they whether correct (step 6a and 6b). If the ID of head is correct, then be written into CAT and CIT (step 6c and 6d). If the ID mistake of head then shows the message (step 6e) of " not readable " in display unit 16.

What Fig. 7 showed is a kind of internal structure of memory cards. A memory cards comprises one or more pieces memory chips. A slice memory chip contains the piece of specified quantity, every page or leaf that contains existing determined number. One page comprises the row of specified quantity, and every row contain one or more memory cells (byte). For example, a memory cards contains 4 chips, and every chip contains 512 pieces. Every comprises 16 pages, and every page has 256 row (byte).

The recording/reproducing memory cards forms such as EEPROM (the erasable and programmable read only memory of electronics) or flash memory by recording/reproducible semiconductor memory chips. Recording and storing device card comprises reproducible semiconductor memory chips, such as mask rom.

Fig. 8 has shown the relational structure between CIT and the CAT. Because CIT is the required key factor of data that has recorded the data field, several CIT have therefore been copied to avoid damage. If the data field changes, CIT also should revise so. When repeating to record when erasable, even many data fragments occurred, also can guarantee to record arbitrarily with erasable.

As previously mentioned, because format is unified, so development and the commercially available commodity of production are very easily. With other recording mediums such as analog tape, Zip disk, it is portable that minidisk etc. are compared a kind of like this IC memory cards, and the aspects such as memory data output have better performance.

Although this paper has shown and described a problem that most preferred embodiment should be considered of the present invention, show that it is possible will making various clogs and revise. Therefore, should think and the present invention includes all possible of the principle of the present invention stated in the appended claim

Embodiment.

Claims

1. one receives and the IC-card memory of storage input digit speech data, and it comprises:

A Head Section is used for storing about the IC-card memorizer information of this IC-card memory and the format information of the form of relevant input digit speech data;

A section attribute table district that is used for storing the joint information relevant with a joint, wherein a joint is corresponding to the input digit speech data that is stored in the once-through operation term of execution in the IC-card memory, and described joint information comprises the information that is used to specify with beginning bunch concordance list corresponding to input digit speech data;

A bunch of concordance list district is used for storing and comprises described beginning bunch concordance list at interior one or more bunch concordance list, and one of them bunch comprises that one or more is the data block of data address, and described bunch of concordance list is the table for described bunch of index; And

A data field that is used for storing digital voice data.

2. the IC-card memory as requiring in the claim 1 comprises that also is used for being an above-mentioned Head Section, section attribute table district, the spare area that the situation of bad piece of appearance provides in bunch concordance list table district or the data field.

3. the IC-card memory as requiring in claim 1 or 2 also comprises a bad block management district that is used for managing the bad piece that produces in the above-mentioned data field.

4. IC-card memory as requiring in claim 1 or 2, wherein the initial address in above-mentioned bunch of concordance list district is stored in the last bit in above-mentioned section attribute table district.

5. IC-card memory as requiring in the claim 4, wherein think bunch of index address that the described initial address in above-mentioned bunch of concordance list district has been specified above-mentioned bunch of concordance list district, and wherein bunch index address of appointment specified again other bunch index address.